package com.im.util;

import javax.servlet.http.HttpServletRequest;

/**
 * @author wangxh
 * @ClassName: IPUtil
 * @Description:
 * @date 2017/6/13 9:54
 */
public class IPUtil {

    /**
     * 获取真实IP地址
     * @return List
     * @date 2015-9-28 下午02:50:11
     */
    public static String getIpAddr(HttpServletRequest request){
        String ip = request.getHeader("x-forwarded-for");
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getHeader("WL-Proxy-Client-IP");
        }
        if(ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
            ip = request.getRemoteAddr();
        }
        return ip;
    }
}
